Portal Single Player

Talk about the game, custom maps, how to get the achievements and beat the challenge maps, and anything related to Portal 1. Caution: Spoilers abound!

Topics
Easter Egg - DEBUNKED (Spoilers!)
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by msleeper Oct 19, 2007 20 Replies · 9,654 Views
by Hyakkidouran
Jan 27, 2008
Valve should Balkanize the challenge map Achievements
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by Crooked Paul Oct 23, 2007 16 Replies · 7,633 Views
by Hyakkidouran
Jan 24, 2008
NEW BUG Discovery or whatever you want to call it(Glitch)!!
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by sKoToSa Jan 17, 2008 9 Replies · 3,595 Views
by Nacimota
Jan 17, 2008
Bug discovered
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by VolumetricSteve Dec 17, 2007 5 Replies · 2,611 Views
by DeviMon
Jan 09, 2008
Portal bug how to transport items from chamber 16 to 17
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by DeviMon Jan 09, 2008 0 Replies · 1,632 Views
No replies
screenshot from discord_23
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by iamafractal Jan 01, 2008 6 Replies · 3,062 Views
by MrTwoVideoCards
Jan 01, 2008
Unlimited cubes Test Chamber 13
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by krikkit Dec 23, 2007 5 Replies · 3,089 Views
by krikkit
Dec 23, 2007
No Story by Theprogram00
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by msleeper Dec 17, 2007 4 Replies · 2,834 Views
by Volatile
Dec 21, 2007
Speed run 17:50 completion
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by Kingpin Dec 10, 2007 0 Replies · 1,811 Views
No replies
VG Cats does it AGAIN!
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by espen180 Dec 08, 2007 3 Replies · 2,440 Views
by Lorithad
Dec 08, 2007
Challenge 17 with NO Portals
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by DiddyKong42 Oct 20, 2007 10 Replies · 5,733 Views
by volt
Dec 08, 2007
Collectors Edition
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by espen180 Oct 27, 2007 12 Replies · 6,107 Views
by Kysito
Dec 05, 2007
Glados killed with turret
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by Omgee Dec 02, 2007 7 Replies · 3,518 Views
by Omgee
Dec 05, 2007
Timeline for Portal? [SPOILERS]
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by f0rkz Oct 14, 2007 59 Replies · 22,768 Views
by Mrgentalmen
Dec 01, 2007
Creative thinking... (Spoiler)
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by Robinson Oct 15, 2007 34 Replies · 12,359 Views
by MrTwoVideoCards
Dec 01, 2007
fastest times
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by mikebolt Oct 20, 2007 14 Replies · 6,697 Views
by MrTwoVideoCards
Dec 01, 2007
Aperture Discord/Test Chamber 23 by Korjagun
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by MrTwoVideoCards Nov 30, 2007 0 Replies · 2,327 Views
No replies
Logic Portals -Chamber 00 to 03 by Hurricaaane
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by MrTwoVideoCards Nov 27, 2007 11 Replies · 7,186 Views
by MrTwoVideoCards
Nov 29, 2007
Final Boss Speed Run
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by Wroth Oct 31, 2007 11 Replies · 5,692 Views
by Yusayoh
Nov 22, 2007
Portal - Only 20 minutes long
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by espen180 Nov 11, 2007 2 Replies · 2,157 Views
by Yusayoh
Nov 11, 2007